Machine for applying reenforcing eyelets to paper



J. F. FOSTER July 18, 1933.

MACHINE FOR APPLYING REENFORCING EYELETS TO PAPER Filed Jan. 22. 1931 2 SheetsSheet l A TTORNEY.

J. F. FOSTER July 18, 1933.

MACHINE FOR APPLYING REENFORCING EYELETS TO PAPER Filed Jan. 22, 1931 2 Sheets-Sheet 2 Patented 18, 1933 orrics JOHN FAGG FOSTER, F DALLAS, TEXAS Application filed January 22 1931.: Serial No. 510,476.

19 ing the sheets in position and the principal object of the invention resides in the provision of an inexpensive and wholly practical arrangement of elements cooperating to traverse a web paper over a surface of predetermined e cnt, perforating the web at spaced predetermined intervals, preparatory to receii "11;; a circular, perforated eyelet of a composit-ion having greater strength and durability than the web to which it is applied.

Still another object of the invention resides in the provision of separate means for perforating the eyelet material, which latter is received andtraversed by separate means and placing the said eyelets in a magazine pre )aratory to their application to the web and whose openings are at all times maintained in register with the perforations made at spaced intervals in the web.

Still another object of the invention resides in means containing a suitable moistening medium which functions to moisten the web at spaced points where the latter is to re ceive the pre-cut eyelets, it being pointed out that the material from which the eyelets are cut is gummed or otherwise treated so as to firmly adhere to the web when coming in contact therewith.

Yet another objectof the invention resides in the provision of means for cutting the sheets into predetermined length as the web emerges from the machine, which it does after a period of time duringwhich the eyelets are allowed to become set, thereby obviating the possibility that they will become displaced.

With the foregoing objects as paramount the invention has particular reference to its salient features of construction and arrangement of parts, which will become manifest as the descriptionproceeds, taken in connection with the accompanying drawings wherein:

Figure 1 is a diagrammatic side elevation of the preferred embodiment of the invention,

. the frame having been omitted to better illustrate the operative elements of the combination.

F'gure 2 is a fragmentary view, including a side elevation of a thin metal web or belt" employed as a. medium through which the several elements of the combination are operated. i

Figure 3 is a detailed view of one of the plunger-s constitutlng the perforating devices, fragmentarily showing the cam operating means and wheel flange, as well as showing in sections the magazine in which is contained the reenforcing eyelet.

Figure at is a detailed view of the eyelet punching arrangement as well as the means by which the eyelet material is fed thereunder. v

Figure 5 is areduced perspective view of v the punch assembly shown in Figure l.

Figure 6 is a sectional view on lines 66 on Figure 1, and a Figure 7 is a fragmentary view of a sheet of paper on which the eyelet has'been applied and showing the completed work of the invention.

Continuing more in detail with the drawings, it may be here mentioned that the elements of the combination are shown'diagrammatically, since it is the elements of the combination and not the frame fabrication upon which the claims of the present invention are based. Accordingly the large wheel 1 shown in Figure l is mounted for rotation in a suit- 1 able frame, and as apparent in Figure 5 particularly,',has spaced perforations a about its periphery into which extend radially arranged and movable plungers 2. The perforations in the periphery of the flange in the wheel 1 are provided with guidebosses 3 to guide the enlarged ends a on the said plungers 2. The enlarged portions 4 on the plungers 2 are reduced at their operative ends at 5 and which reduced portions are ofsuch di-r ameter as to snugly enter theperforationsfil in the metal web or belt 7 which surrounds the greater portion of the periphery of the wheel 1. This web has aiiixed thereto, at spaced intervals, transverse reenforcing strips 8 and the perforations 6, previously referred to in the web 7 extend through these reenforcing strips 8, as apparentin Figure 2. Therefore, the portions 5, integral with the enlargements e carried by each of the plungers 2 are capable of being projected through the said perforations or apertures (Sduringthe course of the operation of the machine.

It will be noted in Figure 1 that the belt or web 7 is endless and surrounds rollers 9,10, 11, and 12, radially situated about. the axis of the large wheel 1, although the axis of the rollers 9, 10, 11, and 12 are parallel with the axis of the large wheel 1. In the same figure it will be noted that the large wheel 1 is suspended for rotation upon the axis 13 while a cam 1% is held against rotation by means of the squared bearing 15. It will also be noted that the cam let has an inner flange having,

a gradual-rise at Z) and abrupt drop at 0. Reference to Figure 3 will disclose that the inner ends of each of the series of plungers 2 are provided with rollers 16 journaled. inll bearings 17, integral with the plunger rods 2. These rollers 16 ride on the machinedface of the cam flange and are accordingly actuated thereby since the said cam 14 is stationary while the plungers 2 rotate with the wheel 1. Springs 18 surround the upper ends of the plunger rods 2- and are interposed between enlargements 1 thereon and the inner flange 19 of the wheel 1, through which the said plunger rods are slidable longitudinally.

Thus as the wheel 1 rotates, rotation is imparted to the belt 7 by reason of the fact that spaced, semi spherical protuberances 20 on the wheel flange are brought into engagement with recesses 21 in the said belt-7 and it being so rotated, the belt 7 imparts rotation to the rollers 9, 10, 11, and 12 by reason of the the driven element through the medium of the shaft 13, and that the radially spaced rollers previously mentioned are rotated by the belt 7, rotative motion from the upper rollersi 9 and 12 isimparted tothe moistening roll 22, shown in Figure 1 through the medium of shaft 23, mounted in bearings 24,

suitably affixed to the frame of the machine, not shown. A shaft 25 provides for rotation oftheicutte'r roll 26 from the roll 12; The

0 finerroll has a series of spaced, transversely arranged knives 27 which. engage the paper web 28 and cut the same into predetermined lengths as the latter emerges from the machine in its completed form. The paper web is normally in the form of a roll of imperforate material, which roll is designated by thecharacter 29 in Figure 1 and is drawn off this roll, between a mo-istening roll 22 and the guide roll 9 onto the belt 7 and during its course around the wheel 1, is interposed l etweenthe inner surface of the belt 7 and the outer periphery of the wheel 1, during which the operation of perforating the paper web and applying the pro-cut reenforcing eyelets 30 is completed, after which the paper web 28 emerges between the cutter roll 27 and the guide roll 12, over the small guide roll 31, all of which are shown in Figure 1.

l Vith reference now tothe ineansby which the reenforcing material is fed, perforated anu inserted into the magazines 32, reference is made to Figures 4-. and 5, wherein is shown aigear train comprised of gears 33 and and intermediate gear 35, which intermediategear transmits rotation to gear 33 in a clock-wise direction, although the gear 341- is the driven gear, receiving its power of retation through. the medium of shaft 3 6 and the bevel gear assembly 37. A similar bevel gear assembly 38 is provided at the lower end of the shaft 36 at the axis of the large wheel 1 and through this connection the vertical shaft 36 imparts rotation to the gear 34, while the intermediate 35 imparts rotation to thegear Thus, gears 33and3t are rotated at the same rate of speed and, as apparent in Figure 5, crank shafts 39 and 410 are provided with cranks 41 and 42 of unequal length carried thereby andpivotall y engagedat e to punches 4:3. It is particularly important to note that the crankdl is of greater length than the crank 42 and since this is the case, the upper ends of the punch 43 must be slotted to receive the pivots e, in order to provide for the. displacement which will'o-ccur when the and 34 are rotated in the manner explained, to cause reciprocation of the punch 13. such reciprocation being in the form of pitman-like 1noti'on,.such as shown in dotted lines in Figure 4. It is intended that the replaceable operative ends 1-5 of the punches 43 impinge the strips of reenforcementinaterial 46 insuch a manner that theengagement will be flush when the operat-ive'end of the plunger coincides with'the magazine 32, which is in fact therapertures-ain the periphery of the wheel 1.;

Explainingfurther the function of the eye let cutting arrangement ust described, it is pointed out that the operation of the punch 43 is relatively slower than the movement of they periphery of the wheel 1 and necessarily so in order that the operation of the elements will be properly timed so that one of the eye-,

lets will be placed in the magazine 32 preparatory to its being affixed to the web 28 when the magazine reachessuch a position as to register with the apertures 6 in the belt 7, which occurs when the magazine passes under the guide roll 9. Moreover, it is pointed out in Figure 4 that the magazine 32, immediat ly below the guide rolls 47 and 48 is in the approximate position to be engaged by the punch 43, when the latter is in the position shown in dotted lines. The reenforce-ment material 46 travels slower than the surface of the wheel 1 and is timed with the movements of the punch 43 by the drive afforded through '3 medium of the shaft 49, having bevel so ear connection at one end with the inter nediate gear 85 at and at the other end b the guide roll 48 at 51. Thus the reentorcing material and the forming die or punch 43 and its associated elements are operated in coordination with the elements of the combination designed for feeding, moistoning and perforating the paper web through the machine.

In operation, the roll of paper at 29 is fed between the moistening roll 22 and the guide roll 9 and the end of the web is turned clownwardly to be engaged between the belt 7 and the outer periphery of the wheel 1 which has hial perforations at It will be noted that e drum 22, situated immediately above the ide roll 9 i J h, during its rotation will engage and en. the paper web at spaced intervals its passage between the said drum and t e guise roll 9. The thus moistened areas will be so spaced as to coincide with the point where the web is perforated, which oci113 (li rcctly beneath the roll 9, it being pointd out that the abrupt drop on the cam 14,

icated at 0 causes the rod 2 of the perfoed element to be projected radially outd, due to the pressure of spring 18, bringthe projection 5 directly against the paper web, thereby perforating the same and at the ime applying the already perforated orcing eyelet 30 against the moistened race of the paper web. In this connection, s pointed out that the strips of the reenltorcing material 46 are mucilaged and the adhering surfa es are on the upper side of the wheel flange upon which they are guided leans of the guide rolls 47 and 48, the latbeing driven through the shaft 49, previously referred to. The reenforcing material being so disposed, the mucilaged surface th reof will be exposed to the paper web, as apparent in Figure 3, wherein the eyelet 30 and the paper web 28 are shown in position just prior to the application of the eyelet to the pa e as a result of the abrupt outward projection of the perforating element, occasioned by the dual function of the cam surface at 0 and the pressure of the spring 18.

In Figure 4 it will be noted that the matehas spaced valved openings paper web into cut by the downward urge of the punches 48- will remain within the magazine 32 in the 7 form of the-eyelet shown in Figure 7 and thus the eyelets will be in position to be urged outwardly against the paper web at the prop-, er time or subsequent to the moistening operation, previously explained.

Particular reference is made to the relationship between the punching process and the moistening and perforating process, it being pointed out that the eyelets 30 are cut and deposited into the recesses or magazines 32 surrounding the projections 5 within the v apertures a in the. wheel 1 just prior. to the time the rods 2 of the perforating devices fall off the shoulder 0 in the face of the cam 14, to perforate the paper under the roll 9. The cam 14 has a continuous surface of approximately three-fourths its inner circumference and has a gradual rise, terminating in another continuous surface, terminating in the abrupt drop at 0. This particular construction allows the enlargement 4 on the rods 2 to bring pressure against the eyelets 30, while the proj ection 5 carried by the enlargement 4 remains in an extended position through the opening 6 in the belt 7 and reenforcement 8 thereon. Such pressure continues until the wheel 1 has been rotated approximately twothirds of its circumference, whereupon the gradual rise at b on the cam 14 will withdraw the rods 2 and the perforating elements carried thereon, to allow the paper web 28 to pass between rollers 12 and 26 the latter carrying blades 27 which are arranged to cut the sheets of predetermined lengths.

It is particularly pointed out that the con stant pressure applied to the eyelets, to urge them against the paper, combined with the fact that the paper has been moistened at the points where the eyelets are applied, will in-, sure positive adherence of the eyelets to the paper.

The invention has been described with great particularity for the purpose of fully disclosing the relationship and cooperative function of the several elements of the combination but it is understood that it is not intended that the invention shall be limited to any specific details of construction and that certain minor changes and modifications may be resorted to from time to time as fall within the meaning and scope of the appended claims without departingfrom' the spirit and intent of theinsaid perforating devices, a rotating. moistening drum normally in contact with said paper web a reenforcing eyelet feeding mechanism including means for feeding gummed eyelet material and means for punching said material preparatory to its application to said paper web,lmeans associated with said cam operated perforating devices for retaining said eyelets during their passage from said punching means and means for cutting said web in sheets of predetermined size. a

2. Apparatus for forming and affixing gummed reenforcing eyeletsto paper including means for traversinga web of said "paper ina rotary fashion for discharge combined with means for perforating the paper web at spaced intervals during movement thereof, a rotatin 'moistening drum in contact with said paper web, means for forming reenforcing eyelets from gummed material of greater strength than said paper, preparatory to affixing the same inregister with the perforations in said paper web and means associated with said perforating 'means for retaining theeyelets preparatory to their application to said paper web.

Bo l

3.-'Apparatus for forming. and afiixing gummed reenforcingxeyelets' to paper in cludmg; means for progressively moving arange the same relative'to said perforating means whereby the said eyelets will register with-the perforations in said paper-web, a rotatingxdrum havingispaced openings for moistening.-sa-icl paper web'prior to the applic'ation ofsaid eyelets,- means for retainingisaidpro-cut eyelets during. their passage from-"saidpunching. means preparatory to theirzapplicationl to'said web; and means forwapplying :pressure for a predetermined period of'time toallow said eyelets to set.

l.- Apparatus for .forming and afiixing gummechreenforcing eyelets to paper includingr. perforating.ielements operating at predetermined intervals combined with means fol-moving a paper web over the operative point of said perforating elements to be perforated at spaced intervals, separate means for'punchingvand arranging said reenforcingneyelcts preparatory to their application to said paper in register with the'perforations made therein, a guide roll and a moistening drum in contact with said paper -for effecting application of said eyelets, means associated with said perforating elements for retaining thepre-cut eyelets during their movement to a predetermined point for application to said web and means for l1olding.said-'paper and eyelets in contact under pressure to cause said eyelets to becomeset. 7

J OHN' FAGG FOSTER. 

